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Title: In situ bioassays with Chironomus riparius larvae to biomonitor metal pollution in rivers and to evaluate the efficiency of restoration measures in mine areas
Author: Faria, Mafalda S.
Lopes, Ricardo J.
Malcato, João
Nogueira, António J. A.
Soares, Amadeu M. V. M.
Keywords: Chironomus riparius larvae
In situ bioassays
Restoration measures
Issue Date: 2008
Publisher: Elsevier
Abstract: In this study we evaluate the ability of an in situ bioassay with Chironomus riparius larvae, using larval development and growth as endpoints, to biomonitor water quality and to assess the biological recovery of metal contaminated freshwater ecosystems of mine areas that are subject of restoration measures. The bioassay was carried out in streams located near an abandoned goldmine in North Portugal, throughout an environmental rehabilitation of the mine (2002-2004). During this period, a decrease in the inhibition of larval growth in the metal contaminated stream was observed. The bioassay was also performed in streams located near an active tungsten mine in Central Portugal. Larval growth and development were highly inhibited in the stream that receives acid drainage from the tungsten mine and treated water from the AMD treatment station. The results indicate that the bioassay can be used to evaluate the efficiency of environmental restoration measures in mining areas. (C) 2007 Elsevier Ltd. All rights reserved.
Peer review: yes
DOI: 10.1016/j.envpol.2007.01.050
ISSN: 0269-7491
Appears in Collections:CESAM - Artigos
BIO - Artigos

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